Machine



(No Model.)

E. W. BLAGKHALL.

RULING MACHINE. No. 255,572. Patented Mar. 28,1882.

UNITED STATES,

PATENT OFFICE.

EDIVARD W. BLAOKHALL, OF TORONTO, ONTARIO, CANADA.

RULlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 255,572, dated March 28, 1882.

Application filed October 5, 1881. (No model.)

To all whom it may concern Be it known that I, EDWARD WAKEFIELD BLACKHALL, of the city of Toronto, in the county of York, in the Prdvince of Ontario, Canada, gentleman,have invented certain new and useful Improvements in Pens for Ruling- Machines, of which the following is a specification.

The object of the invention is to provide a pen for a ruling-machine which cannot easily be bent and can always be depended upon to mark lines of even thickness and parallel to each other; and it consists essentially of a metal plate of sufficient thickness to permit longitudinal grooves or lines to be cut in its face, the said plate being connected at one end to the pen clamp by a spring-plate. The other end of the plate rests on the paper, and is beveled to form a surface which will not soon wear away. The longitudinal grooves or lines which are cut in the face of the plate form channels to conduct the ink'applied to the face of the plate by means of a piece of saturated flannel or other suitable material.

Figure 1 is aview of a plate with five grooves cut in its face, designed to rule five lines. Fig. 2 is a pen designed to rule merely one line, and especially adapted to be used close to the pen shown in Fig. l for ruling an additional line. Fig. 3 represents views of a pen designed to rule five lines of equal distance apart. Fig. 4 represents views of a pen designed to rule one single line and one double line.

A is a metal plate of any desired width, but

Instead of connecting a separate piece of thin sheet metal to the plate A, the end of this plate might be hammered out thin to form a spring.

While I have found it preferable to make both the plates A and B of sheet-brass, I do not, however, confine myself to this particular material, as other material may be found equally serviceable.

The end of the plate A is beveled, as shown in the drawings, forming a surface to rest on the paper and support the plate. In addition to beveling this end of the plate, it will sometimes be found advisable to notch it, as represented in Fig. 1, in order that while the beveled 'end supports the plate the ink will not be smeared or spread on the paper.

It will be noticed that there is a piece of the metal left intact between each line, or, when the lines are close together, on their outside, forming abroad support.

What I claim as my invention isl. A pen for rulingmachines, consisting of a thick metal plate having grooves cut in its face, and having its lower edge beveled and its upper end provided with a spring plate, substantially as and for the purpose specified.

2. As a pen for a ruling-machine, a sheetmetal plate having longitudinal grooves er lines cut in its face, and being of sufficient width to leave a metal support on each sideot' the said lines,thesaid plate being flexibly connected to the pen-clamp, substantially as and for the purpose specified.

EDW. W. B LAOKHALL.

Witnesses:

R. A. S. KERVAIG, JAS. R. ROAF. 

